Cooker.



A. P. BOYER.

GOOKBB.

APPLICATION IILBD SEPT. 2, 1909. 1,1 l 1, l 3()s Patented sept. 22, 1914.

3 SHEETS-SHEET 1. 35'

., @MFM THE A'ORRIS PETERS CO.. PHOTO-LITHO.. wAsHlNGmN. D. C.

A. P. BOYER.

COOKER.

APPLIUATION FILED SEPT. Z, 1909. L1 l l, 1 3Q Patented sept. 22, 1914;

3 SHEETS-SHEET 2..

1HE NORMS PETLRS CO.. PHCITOLITHO.. HSHINGTUN, D. C.

A. P. BOYER.

COOKER.

APPLIOATION FILED s217122, 1909.

1, 1 1 1., 130. Patented sept. 22, 1914.

3 SHEETS-SHEET 3.

@mi tuaooeo THE'NORRIS PETERS Co.. PHDm-LITHO.. WASHINGTUN, DAvJ.

so said-*heating plates, spiders or griddles 50 struction will definitely appear from the rn'rniar orricn.

A -ALLEN r. Borna, or GosHiiit, INDIANA.

COOKER.

Specicaton of Letters Patent, Pgh'ggntd Spt. 22 19140 `.Application filed September 2,1909. Serial No. 515,893.

T all whom t may concern: y, y i

`Be it known that I, ALLEN P. BOYER, a citizen of the United States, residing at Goshen, Elkhart county, Indiana, have invented certain new` and useful inprove ments in Cookers, of whichthefollowing is i a specification.

This inventioiirelates to improvements in y cooking devices, which are designedto cook i g `are provided with.

mainly by retained heat but whichv devices self-contained fuel burners v a y The objects of this invention are: First, to provide a complete` and" self-contained cooking apparatus, which, after the generation of heat by a burner` entirely within the same, can be` closed and retain the `heat to effect the cooking by the retained heat. Sec'- ond, to rprovide an improved construction of heat-retaining device infwliich the heat will be naturally and eifectivelylretained bel causej of its reduced specific gravity, the same vbeing retained inl an appropriate dome bell or inverted receptacle. Third, to `pro"-` `vide` an improved construction whereby heat-retaining bodies vand articles` to be cooked are heated in place within the cooker, `the main portion ofthe cookerbeing ofthe inverted receptacle type, whereby the heat is effectively retained. u The are nested together.` whereby they can be separated and `placed above and below any cooking utensil that is placed within `,the

cooker. A fourth` object is toprovide an to `insure ventilation `and `drying of the saine,` and henceinsuregood sanitation. A fifth'yobject is to provide an improved cooker whereby a volatile fuel, such as alcoy holcan be made use of in aself-,contained cooker in which the cookingoperation will be completed by the yproper devices for -retaining the heat.` It isalso an obj ect -to provide a self-contained cooker with heat re'-` 'f taining means embracing a burnerto genr. erate the heat.

Objects which relate to detailsof con'- detailed `description tolfollow. i l accomplish the objects of my `invention by the devices and means described inthej serve :the purpose.

following specification.

"The structure described constitutes one `edective embodiment of my invention. Other embodiments will be readily devised by those skilled in the art. y

llhe invention is e clearly defined and pointed` out in the claims. y v, 'A structure constituting an effective and `preferred embodimenty of` my invention is clearly illustrated in the accompanying drawing, forming a part of this speciiication, in which: 3

`Figure l is a side elevation ofvmy im proved cookeiythe shifted position. of cer` tain ofthe parts being indicated by dotted lines. Fig. 2 is a vertical `centralsectional elevation through a cookerfembodying the features ofmy invention, taken Von a line `corresponding to line 2--2 of Fig. l. Fig. 3 is a detail sectional view through the base ,and a modification of my improved burner, taken on a line `5 5 of` Fig. 4. Fig. 4 is a plan view of the modiicationof theburner appearing. in Fig. 3. Fig. 5 is a detail view of one of the locking hooks for locking the doinepart of my improved cooker onto the base, and thus effectively locking 'the same similar `numerals of reference refer to similar parts throughout the several views.`

"Referring to, the drawing, the base l is usually i a round board `or plank on which is supported the bottom,A which is conical on its exterior surface at 4 to receive the dome-shaped heat-retaining chamber `which is beveled at 10 t0 correspond theretto.

depression 7` in the center, surrounded by the annular ring, lprojecting well up into 'the chamber 2. The depressionat the cen ter is to receive and accommodate the alcohol y burner 18.` `This metal shell is filled `with `an insulating material 5, whichis preferably asbestos, or mineral wool.

Thelmain part of the cooker 2 is `an in,I

Vverted receptacle which l call a dome, made up of an upper shell 8, which is `secured fto atop l1, which lis here illustrated as of plank, though a metal top `would serve the purpose just as well. The chamber between the outer and inner walls is filled with min# eral wool, or similar effective insulating material 12. The space may be a vacuuml and The dome part of the cookerdrops onto This baseis a metal shell, having a the lower and is ret'ainedinhooks 13, Which are pivoted at 14e-tothe base, and engages pins 15 on the dome.

There are tWo or more hooks to insure full locking of the dome in place, so that it Will be possible to generate .considerable pressure inside and thereby increase `the heat much above the boiling point.

.The fuel I vuse is preferably denatured als cohol, Which I use in the specially con# struct'ed burner, Which is of theform lpref- ;,erablyyappearing kin Eig. 2.

rlhe upper dome part I preferably support by .a suitable counterbalance, hereinafter ito bel described, but it can also be` supported by pivoted lingers 16, which are Y plvoted atjl'to the under side yof the spider `23,--see particularly Fig. 2. Threeof these l ,"'The burner Which I preferably use in `this device `isan alcohol burner-18 of the fingers areprovided toA swing out and sup.- port the dome of the `heater in place.

"'fkind appearing in Fig. 2j This hasa cen tral 'Ventilating tube or vchimney 19, surroundedb'ylaV metal reservoirvQO, Which eX-' tends,y up into a tube inproximity tothe ventilatingchimney 19, forming av space for they Wick 22, which` wick ispreferablyofasbestos or Vmineral Wool.

the reservoir 20 is plugged byv the screwr `f2,1,\asappears in said Fig. 2 As this burner isjplaced in the broad depression 7 and' n'the upper ,part of the cooker iss'upported above the'same, the air to supply and maintain combustion circulates readily to the llamp and the heat therefrom is delivered" fupfc'entrally into the dome of the cooker.

',Ar'ing spider 23' is provided, "having suitfable legs24 Which rest upon thebaseandf form 'an' air ,spacel to admit airto supply and 'maintain combustion.

Resting. upon .f'this 4ring 23" are otherrspider rings 25 and "'26, the ringQG being provided `With legs' 2741.0 separateit from thesai'd ringto' permit a freecirculation ofthe flame' and f heatedjproductsy from thel burner belovv'.-A

These vspiders also constitute the'hot plates 'or-heating g bodies ofthe cooker andare I used, after they have vbeen'kheat'ed, -exactly the samevas the heat-retaining bodies in.y

.l they ordinary frelessfcooken being -of the QIOrmJthat appears here, after the charge of denatured alcohol has been burnedl and the parts .properly heated, 'the upper part of 4 .thecooker is 'raised up and the contents re- "arranged` and a hot Where that is desired.

plate placed on top,

Of course, where the article of food to be cooked is some simple `vegetable Which requires merely stevving, or a mush, which requires merely the stevving and the boiling,

, the heating bodies can be eliminated and less alcohol or fuel can be made useof, merely" enough to heat the interiorof `the.domeand thearticlev to be cooked, thereby'.greatlyfA4 .the contents of the cooker.

The hole to lill shown in Fig. 2. f

V-economizing Where thisy result is desired.

to'aneye 32 in the top of the dome and isV provided l withv a counterbalance Weight '36,

whichy causes yfthecable or Vchain Vtoplay through a groove` 85 andr-etain the saine` in?? place or positionlfby friction.` By this means, a comparatively `light Weight serves to counterbalance the ldome of thecooker, so

fthatfitl-can be readily raised and adjusted. Y hook 37 isl secured to therchain or cable la `little above the cooker sothatfthe dome ,can be raised lto the horizontal position and retained there as indicated by vthe dotted lines in Fig; 1. *This permitsthe heat to' esing a sanitaryl condition.

- in'rigsgsfand 4.11 lhave Shown a mtiifiaiV form ofthefbase and burner in which the cape'and'th'e cooker to dry, thereby `i'nsur-l',"

base platel'is provided With a `metal shell having the side ineinber 4f and the disk like top-3. 'This metal shell islilled with an in-` '3 -is lprovided With A:1L-*centraldepressin 29 lsulating'r"materialr 5, vvhichis preferably asbestos or'mi'neral Wool. 'Thefdiskiilike top and aplurality of perforations AJOfare are rangedin saidtop 3 in a circleconcentric with the depression* 29. To; one-sidetherefof ,isv 'provided an opening f closed f by the screw plug 31. Beneath the central'depression there is arrangedinthe heat retainingv ;'4

chamber-formed `by lthe outer metal-:shell and the insulating material, a cup 28 which .l is .filled With alcoholfor the hydrocarbon fuelyvhich-is lused forfll'the vrburner.V @This modification shows an arrangement of base I" V wand burner Which mayftakel the place. ofA that `It Will be seen from the*V descriptionithat I have'ufgiven thatmy'improvejd cooker consists of a baseportion',` vwhich carriesfasuit! ableburner, preferably for'den'atured alcohol, although any`properfuelcan be `made use of, evenlcharcoal. The spiders or plates,

which also serve asheat-retaining anddis-V ytributing bodies,` insure theffull Vutilization of theheat developed.V The .plate -25 is providedwith a centralopening, so that the `llamel land heat from Vtheburner readily vpass upA and thoroughly heattliese parts, and

thoroughly heatany article of food orcookl ing-'utensil thatis placedwithinrthe dome above. These various rings. are provided With concentric seats, so that theycenter 'themselves `inplaceto receive the Vdome part of the cooker above,` Without moving lthe samerunnecessarilan'd they Valso support los l the cookingutensil in proper positionto vbe mosteifectively heated.` These rings are slots to be handled with any stovelid lifter.

the same, for baking and the like. 1 The rings and spiders are preferably provided with The burner will be effective with Vfewerrings and with simple flat plates arranged above the same, but the form which I haveillustrated, is very edective because the heated products of c'ombustion pass all through the devices, and very quickly raise them to a temperature sufhciently high for the purpose. t

As before remarked, where it `lssimply desired to stew some article of food, that 1 can be accomplished with the rings entirely omitted, except a convenient support to` secure the necessary ventilation for the burner,

and for many purposes the cooker would be found to be effective Without any `rings lor plates at all `on this account. This is especially so, when it is borne in mind that the interior of the dome of the cooker is thoroughly heated by the rising productsv of combustion from the flame of the burner.

I have designed my improved structure specially for the use of denatured alcohol, as fuel, and find the same to `be very effective, as the fuel is effectively consumed, and no odor is carried to` the contents of the cooker. Other fuels may be made use of by taking great care to have the combustion complete, and, while I wish to claim my de-` vice as a special structure `adapted for` the use of denatured alcohol as a fuel, I also desire to claim the structure broadly for. use with fuels of any description. I also desire to comment that alcohol fuels are put up in various forms, there being means for solidifying alcohol, so that a special burner is not really required therefor, and I wish it to be understood that my claim is broadly to any fuel adapted for vuse in this relation.

`l/lhile it is much to be preferred to place a charge ofv fuel in the cooker of the right size to accomplish the particular cooking, I desire to comment that that is not really necessary, because, if the parts become effectively heated before the fuel is entirely consumed, it is not necessary to wait for the consumption ofthe alcohol or other fuel,

but the dome can be closed and the flame will be immediately extinguished without any serious consequences. y

I-Iaving thus described my invention, what I claim as new and desire to secure by Letters Patent is l. In a cooker, the combination of a suitable insulated base, having a central depression and conical exterior; an alcohol burner, arranged on the said base; suitable spiders or heat plates with supporting legs the lower of which rests on the said base and Containing Passes@ Ways whichfpiaa are suitably CfOlCllied` to receive and "Support a cookingutensilg'a dome consisting of an inner and outer shell lof metal with suitable insulation between, conformed.` to lit the porting the said dome above the said base for the admission of airto the burner and `for circulation of the productseof combustion; a counterbalance consisting of a weight and connecting cableor chain, connectedV tol the central part ofthe dome vof "said heater; and a hook secured to the said cable above the said Iheate` and arranged to engage thebottom of the said dome to hold it in a horizontal position when elevated, all `coacting substantially `as described and for the purpose specified.

2. In a cooker, the combination of a suitable insulated base, having a central de- .conical exterior of said base;m`eans of suppression and conical exterior, an alcohol y burner, arranged on the said base; suitable spiders or heat plates with supporting legs the lower of which rests on the said base, which plates are suitably conformed to receive and support a cooking utensil; a dome consisting of an inner and outer shell of metal with suitable insulation between, conformed to fit the conical exterior of said base; a counterbalance consisting of a weight and connecting cable or chain, connected tothe central part of the dome of said heater; and a hook secured to the said cable above the said heater and arranged to `engage the bottomcf the said dome to hold it in a horizontal position when elevated, all

coacting substantially as described and for the purposespecified. r

3. In a cooker, the combination with a suitable base; of a suitable burner arranged on said base; suitable spider or heat `plates with supporting legs the lower of which rests on the said base and arranged above the said burner; a heat-retaining dome fittcd to the said base; a counterbalance for the said dome consisting of a suitable weight and cable connected thereto; and a hook `secured to the said cable'above said dome and arranged topengage the bottom of said dome to hold it in horizontal posie tion, when elevated, all coacting for the purpose specified.

t. In a coo-ker, the combination with a suit-able base, ofa suitable burner arranged on said base; a .heat-retaining dome fitted to the said base; a counterbalance for the said dome consisting of a suitable weight and cable connected `thereto; and a hook secured to the said cab-le above said dome and arranged toengage the bottom of said ffxonyfsaid g base .a Vhefretaining dome tted I `torghe ,saol base; means of supporting a said dome and arranged to engagevthe bot! "rtom of said dome tohold it in horzontailz posltlon-when elevated, all coaching for the a v10 suitable nsulatedibase, of a heating means; si

Copies'of this patent may be obtained for pilrposespeeied'. y Y l `6. In a Vcooker,` the combination Wth'a.

,a .heat-retaining domeS-ftteol A 4to lr'the said base; a countelrblalancelfor [said dome; and

means 11501'4 adjusting the said dome in albori-- l5 l zontal position, coa-ating, forff ythe* purpose specified-. ,l p l Inwtness whereof, I,` havejherennto set my. 'ha-ndaand seal the presence of vtwo Witnesses.

l llVtnesses:

CLoRAY E.,ISRADEIy, y, l 1 F.` GERTRUDETALLMAN. l, a

llve cents eaehfby addressing the Commissioner of Patents, Washington, ID, t3. l a v i Amann-Bona; im; 

